A1 kanthal

[Mrwaylon]

Hey everyone I have a question for ya. I've been building coils for about 7 months now. Well about 9 months ago I bought some 28g or so they say it is. But my question is this I was watching a video from rip trippers last night about the micro coil on a 5/64 drill bit with 13 wraps I believe it came to 1.5 ohms. Well I did one last night for my trident 5/64 bit wrapped it 13 times did them good and tight and torched it. Well after I done that I checked it with my ohm meter and it said 2.2 ohms. I'm wondering if they sent me the wrong wire?.

[WillBlack]

Well here's the resistance.

AWG 28: Low Resistance (0.44 ohms/inch)

AWG 29 Low Resistance (0.55 ohms/inch)

AWG 30: Low Resistance (0.70 ohms/ inch)

AWG 32: Low - Standard Resistance (1.1 ohms/ inch)

AWG 33: Low - Standard - High Resistance (1.39 ohms/inch)

No simple answer. You coil has ~50% more resistance. Using that, your wire has a resistance of ~ 0.66 ohms/inch.

Oh well. I don't think it's worth worrying about. Seems you have ~.17Ω per wrap, just adjust accordingly. 9 wraps should get to ~1.53Ω. If you want more wraps use a smaller drill bit.

Next batch try some Temco.

http://www.ebay.com/itm/Kanthal-A1-wire-28-Gauge-100-FT-0-61oz-Resistance-Resistor-AWG-A-1-/190991728249?pt=LH_DefaultDomain_0&hash=item2c77fe7e79